sum(1) -- Linux man page

 

NAME

sum - checksum and count the blocks in a file  

SYNOPSIS

sum [OPTION]... [FILE]...  

DESCRIPTION

Print checksum and block counts for each FILE.

-r
defeat -s, use BSD sum algorithm, use 1K blocks
-s, --sysv
use System V sum algorithm, use 512 bytes blocks
--help
display this help and exit
--version
output version information and exit

With no FILE, or when FILE is -, read standard input.  

AUTHOR

Written by Kayvan Aghaiepour and David MacKenzie.  

REPORTING BUGS

Report bugs to <bug-coreutils@gnu.org>.  

COPYRIGHT

Copyright © 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

SEE ALSO

The full documentation for sum is maintained as a Texinfo manual. If the info and sum programs are properly installed at your site, the command
info coreutils sum

should give you access to the complete manual.